Company lists · Data refreshed October 2026

Top 25 Api integration platforms based in the United Kingdom

RevenueBase identified 50 company matches for api integration platforms associated with the United Kingdom as of October 2026 and tracks 640 professional contacts across them, including 191 with verified work emails. London is the largest hub.

This list covers company matches for api integration platforms associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 1, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Oct 1, 2026 How this list was built
50Companies
640Contacts tracked
191Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest api integration platforms based in the United Kingdom

Ranked by team size
Top 25 of 50 company matches for api integration platforms based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 1, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLondon, United KingdomHQ recorded Oct 1, 202651-200120 contacts →

Exact match

“Tyk is a leading API Management Platform.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Oct 1, 202651-20067 contacts →

Exact match

“Patchworks is an enterprise-grade integration and automation platform that helps organisations connect systems, orchestrate workflows and move faster.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
3Exact matchCroydon, United KingdomHQ recorded Oct 1, 202611-5034 contacts →

Exact match

“Cyclr is an embedded integration platform (embedded iPaaS) and MCP PaaS vendor for SaaS and AI applications.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Oct 1, 202611-5026 contacts →

Exact match

“We connect your CRM, ERP, AI and Cloud systems, bridging internal platforms and external tools so your data flows cleanly, your processes run automatically, and your business…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
5Exact matchNewcastle Upon Tyne, United KingdomHQ recorded Oct 1, 202611-5025 contacts →

Exact match

“Zynk is one of leading Integration Platform as a Service providers specializing in accounting data integration.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Oct 1, 202611-5012 contacts →

Exact match

“At Cloudorizon, we specialise in seamless data and process integrations to boost efficiency and drive growth.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
7Exact matchSutton, United KingdomHQ recorded Oct 1, 202651-20011 contacts →

Exact match

“At Adaptris our mantra is Integration Anywhere.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Oct 1, 202611-5010 contacts →

Exact match

“Your trusted partner for API and Integration Ecosystem transformations - Military precision, expertly executed."We believe that what is expected of your systems integrator is…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
9Exact matchNantwich, United KingdomHQ recorded Oct 1, 202611-507 contacts →

Exact match

“Rare Earth Digital helps organisations modernise and optimise their technology through smart integrations, APIs, automation, cloud solutions, and custom software that actually…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
10Exact matchLewes, United KingdomHQ recorded Oct 1, 20261-107 contacts →

Exact match

“Cosoft is a UK software development and integration specialist helping Channel businesses connect and enhance the software they rely on every day.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11Exact matchReading, United KingdomHQ recorded Oct 1, 20261-106 contacts →

Exact match

“We believe there is a whole lot more to successful integrations than just syncing data.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
12Exact matchGlasgow, United KingdomHQ recorded Oct 1, 202651-2005 contacts →

Exact match

“From award-winning business systems software developer Eureka Solutions, Besyncly, is a cloud-based integration solution that improves data communication within your business.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13Exact matchAltrincham, United KingdomHQ recorded Oct 1, 202611-505 contacts →

Exact match

“Your business is running on multiple software platforms.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
14Exact matchReading, United KingdomHQ recorded Oct 1, 20261-104 contacts →

Exact match

“Recursyv provide a fully Managed Integration Service to customers across all business verticals and geographies.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15Exact matchReading, United KingdomHQ recorded Oct 1, 202611-503 contacts →

Exact match

“Integral Zone, a MuleSoft & Salesforce partner, is at the forefront of API integration and product innovation.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Oct 1, 20261-103 contacts →

Exact match

“Attlaz is a cloud-based integration and automation platform (iPaaS) designed to help B2B and B2C businesses streamline complex data flows and unify their technology ecosystems.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Oct 1, 20261-103 contacts →

Exact match

“HDT Integration Platform as a Service (iPaaS) provides data solutions for the B2B and B2C markets.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Oct 1, 20261-103 contacts →

Exact match

“Integration challenges are hurting businesses today: Businesses juggle 100+ SaaS applications Data silos create inefficiency and lost opportunities Current solutions force painful…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
19Exact matchManchester, United KingdomHQ recorded Oct 1, 20261-103 contacts →

Exact match

“Versori builds technology for critical business infrastructure.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
20Exact matchLeeds, United KingdomHQ recorded Oct 1, 20261-102 contacts →

Exact match

“Supply Lens is a no-code integration platform shaping the future of connected business.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Oct 1, 202611-502 contacts →

Exact match

“Oolys is an API infrastructure platform for Financial Service Providers.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
22Exact matchWatford, United KingdomHQ recorded Oct 1, 20261-102 contacts →

Exact match

“Integration is about much more than just technology.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
23Exact matchBurton-on-trent, United KingdomHQ recorded Oct 1, 20261-101 contacts →

Exact match

“Welcome to Marshall Mahoney Ltd!”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
24Exact matchWatford, United KingdomHQ recorded Oct 1, 20261-101 contacts →

Exact match

“simplify enterprise processes fits in your ecosystem always change-ready extend with ease”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
25Exact matchWeybridge, United KingdomHQ recorded Oct 1, 20261-101 contacts →

Exact match

“API Solution Development Looking to develop your API solutions but not sure where to start?”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase

Showing 25 of 50 api integration platforms based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 191 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Api integration platforms based in the United Kingdom at a glance

As of Oct 1, 2026
29.8%Verified-email coverage
12.8Average contacts per company
1-10Median size (employees)
32.0%Largest-city concentration · London
Oct 1, 2026Page data refreshed

Companies by employee count

1-10
27
11-50
18
51-200
5

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 50 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United Kingdom whose business descriptions match “api integration platforms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 191 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on October 1, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “api integration platforms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many api integration platforms are there based in the United Kingdom?

RevenueBase identified 50 company matches for api integration platforms associated with the United Kingdom as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

TYK tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most api integration platforms?

London leads with 16 company records, followed by Leeds (3) and Manchester (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 191 professional contacts with verified work emails tracked across these 50 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 1, 2026.

Ready to reach these companies? Verified emails and direct dials for all 50 api integration platforms based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.